The inequality is .
(Distributive property: a(b + c) = ab + ac)
(Multiply:
)
(Add:
)
Apply subtraction property of inequality: Subtract 5n from each side.
\ (Apply Commutative property: a + b = b + a)
(Apply Additive inverse property:
)
(Apply Subtract:
)
\
Apply subtraction property of inequality: Subtract 12 from each side.
\ (Apply Additive inverse property:
)
(Subtract:
)
Apply divison property of inequality: Divide each side by 2.
\
(Cancel common terms)
The solution set is
Graph the solution set on a number line.
\Note: A circle means that this point is not included in the solution set.
The solution set is .
The graph is
\